Home / 143,906-217,866

Finding the Third Proportional to 143,906 and 217,866

Calculator

Solution

The third proportional to 143,906 and 217,866 is: 329,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,906 : 217,866 = 217,866 : x
  2. Step 2: Convert to fraction form
    143,906/217,866 = 217,866/x
  3. Step 3: Cross multiply
    143,906x = 217,866 × 217,866
  4. Step 4: Simplify right side
    143,906x = 47,465,593,956
  5. Step 5: Solve for x
    x = 47,465,593,956/143,906
  6. Step 6: Final answer
    x = 329,837.49

Related Problems

Find third proportional to 71,953 and 108,933
Half scale
Find third proportional to 287,812 and 435,732
Double scale
Find third proportional to 143,908 and 217,869
Similar ratio
Find third proportional to 215,859 and 326,799
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.